A set of blue, green and gray simple and simple PPT background pictures

The PPT background image is very concise, simple and simple. Various elements are designed on the gradient background: transparent bubbles, feathers, halo, lines, color blocks, mechanism, starlight, etc...

Keywords: simple, simple, and simple PPT background pictures, bubbles, feathers, halos, lines, color blocks, mechanism, starlight slide background pictures, .JPG format;

The PPT background image is very concise, simple and simple. Various elements are designed on the gradient background: transparent bubbles, feathers, halo, lines, color blocks, mechanism, starlight, etc...

Keywords: simple, simple, and simple PPT background pictures, bubbles, feathers, halos, lines, color blocks, mechanism, starlight slide background pictures, .JPG format;